Today, John, a young professor of history, hidden in a cupboard at his home in Almonacid de la Sierra (Zaragoza) an ancient manuscript. After trying to read a few pages you realize that these texts aljamiados, a form of writing in Spanish but with Arabic script. This is a diary that tells the story of a Moorish family expelled in 1609. Encouraged by his grandfather, John decides to investigate more on that story.